Castle Biosciences (CSTL) Inventory Average (2019 - 2026)
Castle Biosciences' (CSTL) quarterly Inventory Average came in at $10.5 million in Q2 2026, up 38.29% year-over-year from $7.6 million in Q2 2025, and up 1.57% quarter-over-quarter from $10.4 million in Q1 2026.
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Analysis
Castle Biosciences (CSTL) Inventory Average (2019 - 2026) Analysis & Trends
Castle Biosciences has disclosed Inventory Average across 8 years of filings, most recently posting $10.5 million for Q2 2026.
- In Q2 2026, Inventory Average rose 38.29% year-over-year to $10.5 million; the TTM figure through Jun 2026 stood at $10.5 million (up 38.29% YoY), while the FY2025 annual figure was $9.2 million, up 14.38% from the prior year.
- Inventory Average came in at $10.5 million for Q2 2026 at Castle Biosciences, up from $10.4 million in the prior quarter.
- In the past five years, Inventory Average ranged from a high of $10.5 million in Q2 2026 to a low of $2.2 million in Q1 2022.
- Average Inventory Average over 5 years is $6.6 million, with a median of $7.3 million recorded in 2024.
- Year-over-year, Inventory Average surged 94.46% in 2023 and fell 3.87% in 2025.
- Over 5 years, Inventory Average stood at $3.9 million in 2022, then jumped by 76.19% to $6.9 million in 2023, then rose by 7.26% to $7.4 million in 2024, then increased by 28.54% to $9.5 million in 2025, then grew by 11.3% to $10.5 million in 2026.
- Per Business Quant data, the three most recent Inventory Average figures were $10.5 million in Q2 2026, $10.4 million in Q1 2026, and $9.5 million in Q4 2025.
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Inventory Avg. (Qtr) |
|---|---|---|---|---|---|
| 1 | Natera | 53.05 Bn | 51.95 Bn | 486.15 Mn | 75.53 Mn |
| 2 | Quest Diagnostics | 27.19 Bn | 26.87 Bn | 1.03 Bn | 229.00 Mn |
| 3 | Labcorp Holdings | 25.93 Bn | 25.81 Bn | 1.11 Bn | 529.95 Mn |
| 4 | Guardant Health | 23.97 Bn | 22.91 Bn | 219.03 Mn | 94.66 Mn |
| 5 | Tempus AI | 13.64 Bn | 12.82 Bn | 274.25 Mn | 52.67 Mn |
| 6 | Caris Life Sciences | 8.47 Bn | 7.68 Bn | 182.38 Mn | 100.04 Mn |
| 7 | Sotera Health | 5.35 Bn | 4.99 Bn | 177.96 Mn | 56.93 Mn |
| 8 | BillionToOne | 4.96 Bn | 4.41 Bn | 77.11 Mn | 20.18 Mn |
| 9 | Adaptive Biotechnologies | 4.55 Bn | 4.21 Bn | 51.39 Mn | 10.85 Mn |
| 10 | Castle Biosciences | 1.08 Bn | 811.36 Mn | 79.85 Mn | 10.52 Mn |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Jun 30, 2026 | 10.52 Mn |
| Mar 31, 2026 | 10.36 Mn |
| Dec 31, 2025 | 9.45 Mn |
| Sep 30, 2025 | 8.51 Mn |
| Jun 30, 2025 | 7.61 Mn |
| Mar 31, 2025 | 7.49 Mn |
| Dec 31, 2024 | 7.35 Mn |
| Sep 30, 2024 | 7.29 Mn |
| Jun 30, 2024 | 7.83 Mn |
| Mar 31, 2024 | 7.79 Mn |
| Dec 31, 2023 | 6.86 Mn |
| Sep 30, 2023 | 5.95 Mn |
| Jun 30, 2023 | 5.32 Mn |
| Mar 31, 2023 | 4.25 Mn |
| Dec 31, 2022 | 3.89 Mn |
| Sep 30, 2022 | 3.58 Mn |
| Jun 30, 2022 | 2.86 Mn |
| Mar 31, 2022 | 2.19 Mn |
| Dec 31, 2021 | 2.20 Mn |
| Sep 30, 2021 | 2.25 Mn |
API Access
Castle Biosciences Inventory Average API
Pull this series into your own models, spreadsheets and apps with the Business Quant
Historical Metrics API. The request below matches the chart above — change the
frequency, period or values and it follows. Swap YOUR_API_KEY for your own key.
https://data.businessquant.com/historic?slug=inventory-average&ticker=CSTL&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "inventory-average", "ticker": "CSTL", "period": "max", "api_key": "YOUR_API_KEY"}
data = requests.get(url, params=params).json()const res = await fetch("https://data.businessquant.com/historic?slug=inventory-average&ticker=CSTL&period=max&api_key=YOUR_API_KEY");
const data = await res.json();